The is a high-performance, off-line switching regulator IC developed by Sanken Electric Co., Ltd. . Specifically designed for off-line switching power supplies (SMPS), it integrates a power MOSFET and a current-mode PWM controller into a single compact package to enhance efficiency and simplify circuit design. Key Features and Functions
Supports synchronization with an external clock signal , allowing for coordinated operation in complex systems. Pinout and Package Details
To use the STR-F6267, you must memorize its 5 pins. The plastic body is rated for high voltage isolation, so no insulating washer is theoretically needed (though a heatsink pad is still recommended).
Before downloading the PDF, here are the core specs you need to know. Note that the STR-F6267 comes in a 5-pin TO-220F package (fully molded, isolated). Str F6267 Datasheet Pdf
Real-world diagnostic: If your power supply "ticks" every 2 seconds, the IC is starting, hitting a fault, and restarting.
The STR F6267 offers several benefits to designers and engineers, including:
According to technical data from Utsource and Jotrin Electronics , the STR-F6267 integrates several critical functions into a single package: The is a high-performance, off-line switching regulator IC
The PDF includes a graph showing the allowable drain current vs. drain voltage. Most failures occur because the snubber circuit failed, causing the FET to exceed 800V.
The STR-F6267 is a hybrid IC (Integrated Circuit) developed by Sanken Electric Co., Ltd. It is part of Sanken’s STR-F6200 series, specifically designed for off-line switching power supplies. Unlike a simple PWM controller, this IC includes a power MOSFET directly inside the package. This "hybrid" design simplifies the circuit layout, reduces component count, and improves reliability compared to discrete controller-plus-MOSFET designs.
The Str F6267 Datasheet Pdf can be found on various websites, including: Key Features and Functions Supports synchronization with an
Manages the power-up sequence or external clock input. Common Applications
The IC is typically housed in a 5-pin SIP (Single In-line Package) or TO-3P package, which is favored for its ease of soldering and heat dissipation. Each pin serves a dedicated role: Connects to the primary winding of the transformer.
